98150640 has 160 divisors (see below), whose sum is σ = 357358080. Its totient is φ = 21814272.

The previous prime is 98150629. The next prime is 98150653. The reversal of 98150640 is 4605189.

98150640 = T₁₁₉ + T₁₂₀ + ... + T₈₃₈.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61371 + ... + 62949.

It is an arithmetic number, because the mean of its divisors is an integer number (2233488).

Almost surely, 2^98150640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98150640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178679040).

98150640 is an abundant number, since it is smaller than the sum of its proper divisors (259207440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

98150640 is a wasteful number, since it uses less digits than its factorization.

98150640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639 (or 1633 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 98150640 is about 9907.1004839963. The cubic root of 98150640 is about 461.2797382432.

It can be divided in two parts, 98150 and 640, that added together give a triangular number (98790 = T₄₄₄).

The spelling of 98150640 in words is "ninety-eight million, one hundred fifty thousand, six hundred forty".